300645505493 has 2 divisors, whose sum is σ = 300645505494. Its totient is φ = 300645505492.

The previous prime is 300645505409. The next prime is 300645505541. The reversal of 300645505493 is 394505546003.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 208777714084 + 91867791409 = 456922^2 + 303097^2 .

It is an emirp because it is prime and its reverse (394505546003) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 300645505493 - 2³⁶ = 231926028757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (300645505403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 150322752746 + 150322752747.

It is an arithmetic number, because the mean of its divisors is an integer number (150322752747).

Almost surely, 2^300645505493 is an apocalyptic number.

It is an amenable number.

300645505493 is a deficient number, since it is larger than the sum of its proper divisors (1).

300645505493 is an equidigital number, since it uses as much as digits as its factorization.

300645505493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972000, while the sum is 44.

The spelling of 300645505493 in words is "three hundred billion, six hundred forty-five million, five hundred five thousand, four hundred ninety-three".